Update: it seems that my issue was caused by setting the MPM collider from Animated (Rigid) to Animated (deforming).
Although I don't know why that would be an issue.

I have been trying to out the MPM Snowplow file from the SideFX website, but an error occurs during the caching of the second frame.

OpenCL Exception: clSetKernelArg (-51)

Just can't get it to work.


GPU 3090, RAM 128GB
Updated my Nvidia drivers to 566.36 to no avail.

Tried it with H20.5.370 and H20.5.445

There is a setup for Karma in the content libray.
There are two .zip files - you can just download the smaller one (1.3GB).

https://www.sidefx.com/contentlibrary/polar-camera-clouds/ [www.sidefx.com]

In multiple sessions I noticed that "Kill" in the Render Manager does not work, at least not on my machine, in H 20.5.278

Additionally, it no longer shows render progress, only N/A or 100%

I wanted to render an Houdini Ocean Procedural LOP with a polar camera, but it does not dice all the visible areas, only about half of the ocean.
Can anyone give me advice on this?

Hi, I am struggling to create crashing waves with the ocean spectrum.

Trying to adapt and combine two techniques.

Maybe some of you have seen this technique of creating particles and just giving them a velocity and just smash them into a rock, resulting in beautiful splashes.
https://www.youtube.com/watch?app=desktop&v=ZZF2qno1QlU [www.youtube.com]

I'm trying to get spray and splashes like that but with a beach tank, but can't make it work.
The splashes are just not very high.

When increasing the wind speed and amplitude in the Ocean Spectrum to ridiculous amounts even it doesn't seem to catapult the water into the air, like desired and the wave shape can become weird and look exaggerated.

Can someone give me advice on how to tackle this?

I know they are quite different setups, but some pointers would be great.

Attached the files.
I stashed the collision objects.

On my PC the beach tank takes 3 min. to sim 200 frames with current settings.

Splash sim takes around 5 min.

I never understood how to attach file in these posts, so I'll just add a Google Drive link, hope that is okay.
https://drive.google.com/drive/folders/1O3qOPGy_PZA_i8l4yf2Y15VoegQm9EqB?usp=sharing [drive.google.com]

alexwheezy
If you don't consider the scene itself, even if you exceeded the RAM limit, the operating system usually kills such a process immediately, but you write about freezing. I would check the RAM via memtest and other diagnostic tools.

Okay this possibility did not occur to me, thank you I will it a try.
Thank you!

Hello, during my current project, Houdini caused my system to freeze or crash, several times.

When turning the pc back on the usual background image in start up menu are replaced by a blue color and often the screen stays black for minutes after logging in. After several times turning the PC on and off again I can finally see my desktop again.

Often I wait a bit or force PC to turn off with the power button on my case

This happened with heavier scenes and less heavy ones.
Most recent crash happened when I was rendering particles.
8 Million. In Solaris I instanced cubes on to the points.

Feel like 64GB RAM should be able to handle that?

I don't know if it is more of a Windows issue, but it only happens when using Houdini, that is why I am asking here.

It may have been caused by having a single browser tab open as well.

@jsmack Thank you for your reply, I was not aware of this issue!

I love the new Karma Physical Sky - but wonder if it was intended to be visible in renders (render light geometry)?

The flexibility is great but in my renders it often has ugly banding - like in a video with a low bitrate.
This doesn't usually happen with HDRIs.


Is that due to the way it was set up or did I overlook a relevant parameter?

Cheers

Thank you guys very much!

Would someone be willing to give a more detailed explanation on how to do this?

Can someone explain to me how I can create and apply a double-sided material to in Karma?

I found a post on this forum, but it didn't make it understandable for me.

Houdini Launcher fails to log in / connect to the internet, unless I am connected to a VPN.

Hi, I can't find the animation and character related FBX nodes in my H 19.5.569.
Only ROP FBX output and Labs FBX archive import are available.

Are there ways to fix this without having to do a re-install?

Thanks in advance.

@Mohanpugaz

Thank you, I had even followed both of these videos of yours before, but at some point I messed up my houdini.env which seems to have caused SideFX Labs nodes to not work.
Now, thanks to Henry Foster's fixing both Redshift and Labs seem to work fine.

To be clear, I only ever used one houdini.env at the same time, I just replaced it before opening Houdini.
For a short time period.
A silly approach nonetheless.

But thank you for correcting it and yes I should finally look into packages.

I'm sorry I guess the issue was not resolved.
I had created two houdini.env files, one for Redshift and one for Renderman, since I had problems getting them both to work.
And I must have confused them.

#
# NOTE: The use of packages is highly recommended instead of houdini.env
# See details about packages here: https://www.sidefx.com/docs/houdini19.5/ref/plugins.html [www.sidefx.com]
#
# Houdini Environment Settings
#
# The contents of this file are read into the environment
# at startup. They will override any existing entries in
# the environment.
#
# The syntax is one entry per line as follows:
# VAR = VALUE
#
# Values may be quoted
# VAR = "VALUE"
#
# Values may be empty
# VAR =
#

# Example:
#
# HOUDINI_NO_SPLASH = 1

HOUDINI_PATH = C:/CitySampleSource/Small_City/houdini;&

HOUDINI_USE_HFS_OCL = 0

HOUDINI_DSO_ERROR = 2

PATH = "C:/ProgramData/Redshift/bin;$PATH"
HOUDINI_PATH = "C:/ProgramData/Redshift/Plugins/Houdini/19.5.569;&"
PXR_PLUGINPATH_NAME = "C:/ProgramData/Redshift/Plugin/Solaris/19.5.569"
OCIO = "C:/ProgramData/redshift/Data/OCIO/config.ocio"

Oh, it is working now, not sure what did it, sorry for wasting your time.

SideFX labs nodes are only available if I delete the Redshift related variables in my houdini.env

What can I do to circumvent this and have both SideFX Labs and Redshift work?